Actually sunscreen might cause cancer,since it has those darn chemicals in it. The sun gives life so how can it give cancer ?
And if someone was to spend 8 hours a day straight on a computer without a break they would probaly get cancer from the radiation. Of course if they did cleanses etc... they would probaly prevent the cancer. That also includes not eating most if any of the big company foods,toothpastes etc...
You're right it doe's have bogus claims. But also true claims too...